The trend of the A/H1N1 infection is seen not to decrease dramatically, the ministry said in a statement, the website by Bangkok Post reported.
Since the start of the outbreak, some 14,976 have been confirmed as the A/H1N1-infected patients, the ministry's statement said.
Of the total infected patients, the population with an average age of 10 to 19 is the most affected group as this has accounted for 42.78 percent, the ministry's statement said.
And, the others included those with the age from five to nine years old, which are about 15.89 percent, and the remainders with the age of 20 to 29 years old, accounting for about 14.92 percent, the ministry's statement said.
Thailand had its first two confirmed patients on May 12.